socket vs os

socket and os both are nouns.

Word	Noun	Adjective	Verb	Adverb
socket	Yes	No	No	No
os	Yes	No	No	No

socket (noun)	os (noun)
a receptacle into which an electric device can be inserted	rigid connective tissue that makes up the skeleton of vertebrates
receptacle where something (a pipe or probe or end of a bone) is inserted	a mouth or mouthlike opening
a bony hollow into which a structure fits